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-rw-r--r--drivers/vfio/mdev/mdev_core.c30
-rw-r--r--drivers/vfio/mdev/mdev_private.h13
2 files changed, 43 insertions, 0 deletions
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index 30d05304241e..36d75c367d22 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
@@ -36,6 +36,36 @@ struct device *mdev_parent_dev(struct mdev_device *mdev)
}
EXPORT_SYMBOL(mdev_parent_dev);
+void *mdev_get_drvdata(struct mdev_device *mdev)
+{
+ return mdev->driver_data;
+}
+EXPORT_SYMBOL(mdev_get_drvdata);
+
+void mdev_set_drvdata(struct mdev_device *mdev, void *data)
+{
+ mdev->driver_data = data;
+}
+EXPORT_SYMBOL(mdev_set_drvdata);
+
+struct device *mdev_dev(struct mdev_device *mdev)
+{
+ return &mdev->dev;
+}
+EXPORT_SYMBOL(mdev_dev);
+
+struct mdev_device *mdev_from_dev(struct device *dev)
+{
+ return dev_is_mdev(dev) ? to_mdev_device(dev) : NULL;
+}
+EXPORT_SYMBOL(mdev_from_dev);
+
+uuid_le mdev_uuid(struct mdev_device *mdev)
+{
+ return mdev->uuid;
+}
+EXPORT_SYMBOL(mdev_uuid);
+
static int _find_mdev_device(struct device *dev, void *data)
{
struct mdev_device *mdev;
diff --git a/drivers/vfio/mdev/mdev_private.h b/drivers/vfio/mdev/mdev_private.h
index b05dd22fc9a6..a9cefd70a705 100644
--- a/drivers/vfio/mdev/mdev_private.h
+++ b/drivers/vfio/mdev/mdev_private.h
@@ -26,6 +26,19 @@ struct mdev_parent {
struct list_head type_list;
};
+struct mdev_device {
+ struct device dev;
+ struct mdev_parent *parent;
+ uuid_le uuid;
+ void *driver_data;
+ struct kref ref;
+ struct list_head next;
+ struct kobject *type_kobj;
+};
+
+#define to_mdev_device(dev) container_of(dev, struct mdev_device, dev)
+#define dev_is_mdev(d) ((d)->bus == &mdev_bus_type)
+
struct mdev_type {
struct kobject kobj;
struct kobject *devices_kobj;